Analysis

  • max time kernel
    148s
  • max time network
    143s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    08/09/2026, 12:19

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 9.8MB
  • Sample260908-phcspsbj2y
  • SHA256 d8fbcb21a5a5e2a30dba034a5ca4e9fb401529b2d86aa550bbc3fc1525804c99
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 3 IoCs

    Network request originating from process or tool commonly abused by malware.

  • Sets service image path in registry 3 TTPs 1 IoCs

    This determines the executable launched when a service starts. It can be used to establish persistence.

  • ConnectWise ScreenConnect remote access tool

    ConnectWise ScreenConnect is a remote desktop tool that can be used as a backdoor.

  • Event Triggered Execution: Component Object Model Hijacking 1 TTPs

    Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 42 IoCs
  • Enumerates connected drives 3 TTPs 46 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Boot or Logon Autostart Execution: Authentication Package 1 TTPs 1 IoCs

    Suspicious Windows Authentication Registry Modification.

  • Drops file in System32 directory 9 IoCs
  • Drops file in Program Files directory 16 IoCs
  • Drops file in Windows directory 17 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies data under HKEY_USERS 13 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 7 IoCs
  • Suspicious use of SendNotifyMessage 5 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.msi
    1⤵
    • Badlisted process makes network request
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:2812
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Boot or Logon Autostart Execution: Authentication Package
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:5552
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 2C662287EC35FAA33457BE8DADFED248 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1296
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIE6A2.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240707484 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3184
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIEA9B.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240708265 11 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5944
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI5DD8.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240737859 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:124
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:1400
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding E762786071F81AFDA287F86309F84396
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2300
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 5F62D5F4AAF056B841530B4C62AD536E E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:1304
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:5464
    • C:\Program Files (x86)\ScreenConnect Client (4bf7ac5dfcd46ca7)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (4bf7ac5dfcd46ca7)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-ia4fsw-relay.screenconnect.com&p=443&s=f06dbcb8-4b5a-4475-90c9-683d62e7aee9&k=BgIAAACkAABSU0ExAAgAAAEAAQAVvCACXi4S74lJmBJG6YV828pjlZOxFh3UT1XexSXiiWnQv7r4yM0eC4tl%2fSCbsPcRUlv1JGYRUxSB%2bu8pGY%2fYlhoG9aTpZ2l2p8nQqQU5uIIisVAz4FvnJFgk%2ffhR9QOagDKawY24JjoWKHYPQLWryUfXiPBipFj2lkfbcTDJb4tNXmRV9Ww85P61H8YLbrm4GpU2Egk7ZnOAJaQdgrN%2f0FskJjjGZsStWIxObo9xclnr0QOnYUV66KLT8NyXwnQ3lkfyhIDVpisRA8iXBc7ucIUEGrPLr3reMEihTRTRYXmsC4IoUb3NPuRN2dFbSABk12Mz0%2bPVjG%2bqVSL0q%2brO&c=mobiler1234&c=bridges12&c=&c=&c=&c=&c=&c="
      1⤵
      • Sets service image path in registry
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:5564
      • C:\Program Files (x86)\ScreenConnect Client (4bf7ac5dfcd46ca7)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (4bf7ac5dfcd46ca7)\ScreenConnect.WindowsClient.exe" "RunRole" "64328e4c-86c8-4b28-80fd-3eb6e63de93a" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:5228
      • C:\Program Files (x86)\ScreenConnect Client (4bf7ac5dfcd46ca7)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (4bf7ac5dfcd46ca7)\ScreenConnect.WindowsClient.exe" "RunRole" "b70fa9db-f4fb-4c4d-beca-c5fc4cb01036" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:1328

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e59c134.rbs

          • Path C:\Config.Msi\e59c134.rbs
          • Size 214KB
          • SHA256 eef487c2226f758b7082427d613ee93db994075ddec719a42eabffd865d71eb3
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (4bf7ac5dfcd46ca7)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (4bf7ac5dfcd46ca7)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (4bf7ac5dfcd46ca7)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 27e873d0fceefdd1a12ca77e3bbecec2ece7acdba433b47dca102c35e1c5896c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (4bf7ac5dfcd46ca7)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 78fa9cf69577f6990275c7c472f7114f9d0c85e660f3b9c81b085fc3cfbc8673
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (4bf7ac5dfcd46ca7)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 5956f9afb3ba610c38b2cfda88dd15be98783963769a12020c93ce05e749b3c3
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (4bf7ac5dfcd46ca7)\ScreenConnect.Core.dll
          • Size 582KB
          • SHA256 4eab8752d05cd31bafd07edde7d18061cb63eea99af3132460e6dc08bb5f9e73
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (4bf7ac5dfcd46ca7)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ec4de5e6e9c079a30a5780d79ee662e0a4c6d009f0e3f911edc560973fb17d1e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (4bf7ac5dfcd46ca7)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (4bf7ac5dfcd46ca7)\ScreenConnect.WindowsClient.exe
          • Size 685KB
          • SHA256 2763b953657e3c4d6b2f952218a1e1963bcd6971f0b1102d99bb7efea04ceb29
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (4bf7ac5dfcd46ca7)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (4bf7ac5dfcd46ca7)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 7511e679597572782241ff989c065c02f9f5a12ab37290b69a27226eda57ce75
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (4bf7ac5dfcd46ca7)\system.config
          • Size 960B
          • SHA256 11b124f96ebe359c4c20769e9dcfcfa6aadc2068d6bca7053ac286b23dae6683
          • MD5 SHA1 SHA512 TLSH

          MSIE6A2.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSIE6A2.tmp
          • Size 1.1MB
          • SHA256 400ff5b9a4439339876282909b23c397ffa208f4bcf64460fa2521284acf0b6e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIE6A2.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIE6A2.tmp-\ScreenConnect.Core.dll
          • Size 572KB
          • SHA256 74f2d225b492eb77a5654bcaafec5162d0c5f72de884daa4c32daf54e2bff3d7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIE6A2.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 2022f13b1f562d3cbef3a3926f0370a2de64e57ff281a121f90001a47499a356
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIE6A2.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 93f910f732855000861c1b4e6c55a2dee0a8cbb2172d89c7a2bc99053746c193
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSIEA9B.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIEA9B.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 361bbc692084841e4c8d22c89ca89c711d0fe17bc8759241736531a2f28de25b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSICAC9.tmp

          • Path C:\Windows\Installer\MSICAC9.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e59c133.msi

          • Path C:\Windows\Installer\e59c133.msi
          • Size 9.8MB
          • SHA256 d8fbcb21a5a5e2a30dba034a5ca4e9fb401529b2d86aa550bbc3fc1525804c99
          • MD5 SHA1 SHA512 SSDEEP TLSH

          2mg0qrze.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (4bf7ac5dfcd46ca7)\2mg0qrze.newcfg
          • Size 881B
          • SHA256 4dc514e995bab4bfc9d17f397375bf58cd36a554b0a2957255a46217b93d4bda
          • MD5 SHA1 SHA512 TLSH

          hkuogdsr.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (4bf7ac5dfcd46ca7)\hkuogdsr.newcfg
          • Size 683B
          • SHA256 bb17ea248d2ed24c62dda29930b2c66259930a23f1de93ad73a1d0c27deecb97
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (4bf7ac5dfcd46ca7)\user.config
          • Size 520B
          • SHA256 91c582c200e3128346587e86058860cd8ffdbc1d1c377dc1fbe133f1cc0ebdd6
          • MD5 SHA1 SHA512 TLSH

          {cb377668-95f2-430c-a1d4-88ec4fab160c}_OnDiskSnapshotProp

          • Path \??\Volume{c61fbfff-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{cb377668-95f2-430c-a1d4-88ec4fab160c}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 a27a925c43ac663505d9a3a416501e3e456326e739f186d18ce72762bfc2497b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1328-215-0x0000000002D70000-0x0000000002DB1000-memory.dmp

          memory/3184-34-0x0000000005DE0000-0x000000000639A000-memory.dmp

          memory/3184-33-0x0000000005670000-0x0000000005820000-memory.dmp

          memory/3184-29-0x0000000005420000-0x00000000054B6000-memory.dmp

          memory/3184-25-0x00000000052E0000-0x00000000052EC000-memory.dmp

          memory/3184-21-0x0000000005310000-0x000000000533E000-memory.dmp

          memory/5228-210-0x000000001B1D0000-0x000000001B266000-memory.dmp

          memory/5228-209-0x000000001ADC0000-0x000000001AE2C000-memory.dmp

          memory/5228-211-0x000000001B420000-0x000000001B5D0000-memory.dmp

          memory/5228-208-0x00000000000E0000-0x0000000000190000-memory.dmp

          memory/5228-212-0x0000000000A10000-0x0000000000A2A000-memory.dmp

          memory/5228-213-0x000000001B760000-0x000000001B8E8000-memory.dmp

          memory/5564-189-0x00000000046B0000-0x0000000004786000-memory.dmp

          memory/5564-187-0x00000000040C0000-0x0000000004101000-memory.dmp

          memory/5564-185-0x00000000044C0000-0x0000000004552000-memory.dmp

          memory/5564-184-0x00000000041D0000-0x000000000423C000-memory.dmp

          memory/5564-165-0x0000000004110000-0x0000000004160000-memory.dmp

          memory/5564-152-0x0000000004270000-0x0000000004420000-memory.dmp

          memory/5564-148-0x0000000003FF0000-0x0000000004086000-memory.dmp

          memory/5564-142-0x0000000001950000-0x000000000196A000-memory.dmp

          memory/5944-64-0x00000000057A0000-0x00000000057C8000-memory.dmp